Lacroix-Boudhrioua V, Linglart A, Ancel P Y, Falip C, Bougnères P F, Adamsbaum C
Insights Imaging. 2011 Dec;2(6):671-678. doi: 10.1007/s13244-011-0117-0. Epub 2011 Aug 10.
To describe the prevalence and characteristics of pineal cysts found on MRI in children. METHODS: This is a retrospective monocentric study of all brain magnetic resonance imaging (MRI) examinations performed under the same technical conditions for checking the idiopathic nature of short stature (ISS group, n = 116) and for the investigation of central precocious puberty (CPP) over a 3-year period (n = 56). Dimensions, wall and septal thickness, number of locules, signal intensity, and the presence of a solid component were analysed. Ten of 19 cysts were re-evaluated (follow-up interval 4-28 months). The prevalence of the pineal cysts was compared between the two groups using χ2 and Fisher's exact tests, and a significance threshold of p < 0.05. RESULTS: The prevalence of cysts was comparable in the two groups, CPP (10.7%) and ISS (11.2%). Cyst characteristics were similar in the two groups and 74% had thin septations. None of the cysts changed on follow-up. None of the children with pineal cysts exhibited neurological signs. CONCLUSION: Benign pineal cysts are a common finding in young children. High-resolution MRI demonstrates that these cysts are often septated. This pattern is a normal variant and does not require follow-up MR imaging or IV contrast media.
描述儿童磁共振成像（MRI）检查中发现的松果体囊肿的患病率及特征。方法：这是一项回顾性单中心研究，纳入了在相同技术条件下进行的所有脑磁共振成像（MRI）检查，这些检查是在3年期间内用于检查特发性矮小症（ISS组，n = 116）的特发性性质以及用于中枢性性早熟（CPP）的调查（n = 56）。分析囊肿的大小、壁和间隔厚度、房腔数量、信号强度以及实性成分的存在情况。对19个囊肿中的10个进行了重新评估（随访间隔4 - 28个月）。使用χ2检验和Fisher精确检验比较两组松果体囊肿的患病率，显著性阈值为p < 0.05。结果：两组囊肿的患病率相当，CPP组为10.7%，ISS组为11.2%。两组囊肿特征相似，74%有薄分隔。随访期间囊肿无变化。患有松果体囊肿的儿童均未出现神经学体征。结论：良性松果体囊肿在幼儿中是常见发现。高分辨率MRI显示这些囊肿常为分隔状。这种表现是一种正常变异，无需进行随访MRI检查或静脉注射造影剂。
